Clinical features

Note:

• Patients without a recent onset headache, jaw claudication or an abnormal temporal artery are unlikely to have giant cell arteritis. ^b

No recent headache, jaw claudication or abnormal temporal artery make giant cell arteritis unlikely

Patient	Target Disorder and Reference Standard	Diagnostic Test	LR+ (95% CI)	Post-test Probability	LR- (95% CI)	Post-test Probability
suspected giant cell arteritis having a temporal artery biopsy b (pre-test probability: 53%)	giant cell arteritis (positive temporal artery biopsy)	any of recent onset headache, jaw claudication, abnormal temporal artery	2.9 (2.0 to 4.1)	69%	0.0 (0.0 to 0.098)	0%